I can't get the Pirate Bay to show in the Miro screen

Miro, I can't get the Pirate Bay to show in the Miro screen. After installing Miro, I did subscribe to the TPB site through http://subscribe.getmiro.com and indeed, my Miro sidebar now looks like the screenshot on the TPB website. However, the right side of the screen remains blank, no matter whether I press the refresh button or wait for some time. I’m behind a proxy and checked my settings. The Wildlife Highlights and Global Pulse videos are OK and downloadable.